[PATCH 2/3] ARM: dts: imx6q-b850v3: Update display clock source
Akshay Bhat
akshay.bhat at timesys.com
Mon Apr 18 14:19:44 PDT 2016
The default monitor that ships with B850v3 requires a 65MHz pixel clock.
65MHz can not be achieved using PLL3 (480MHz/7=68.5MHz). Hence set the
LDB_DIx clock source to PLL5. Since PLL5 is already in use by IPU1_DIx,
set the clock source for IPU1_DIx to PLL2_PFD2 to allow simultaneous
display on both LVDS and HDMI interface.
Signed-off-by: Akshay Bhat <akshay.bhat at timesys.com>
---
arch/arm/boot/dts/imx6q-b850v3.dts | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/imx6q-b850v3.dts b/arch/arm/boot/dts/imx6q-b850v3.dts
index dc4b06f..167f744 100644
--- a/arch/arm/boot/dts/imx6q-b850v3.dts
+++ b/arch/arm/boot/dts/imx6q-b850v3.dts
@@ -53,11 +53,18 @@
};
};
-&ldb {
+&clks {
assigned-clocks = <&clks IMX6QDL_CLK_LDB_DI0_SEL>,
- <&clks IMX6QDL_CLK_LDB_DI1_SEL>;
- assigned-clock-parents = <&clks IMX6QDL_CLK_PLL3_USB_OTG>,
- <&clks IMX6QDL_CLK_PLL3_USB_OTG>;
+ <&clks IMX6QDL_CLK_LDB_DI1_SEL>,
+ <&clks IMX6QDL_CLK_IPU1_DI0_PRE_SEL>,
+ <&clks IMX6QDL_CLK_IPU1_DI1_PRE_SEL>;
+ assigned-clock-parents = <&clks IMX6QDL_CLK_PLL5_VIDEO_DIV>,
+ <&clks IMX6QDL_CLK_PLL5_VIDEO_DIV>,
+ <&clks IMX6QDL_CLK_PLL2_PFD2_396M>,
+ <&clks IMX6QDL_CLK_PLL2_PFD2_396M>;
+};
+
+&ldb {
fsl,dual-channel;
status = "okay";
--
2.8.1
More information about the linux-arm-kernel
mailing list